Chapter 1 Getting To Know Your Zywall; Zywall 5 Internet Security Appliance Overview; Zywall Features - ZyXEL Communications ZyWALL 5 User Manual

This chapter introduces the main features and applications of the ZyWALL.
1.1

ZyWALL 5 Internet Security Appliance Overview

The ZyWALL5 is the ideal secure gateway for all data passing between the Internet and the LAN.
By integrating NAT, firewall, content filtering, certificates and VPN capability, ZyXEL's ZyWALL is
a complete security solution that protects your Intranet and efficiently manages data traffic on your
network. Dial backup and traffic redirect enhance reliability. You can deploy the ZyWALL as a
transparent firewall in an existing network with minimal configuration.
The PCMCIA/CardBus slot allows you to add a 802.11b/g-compliant wireless LAN. The ZyWALL
increases network security by adding the option to change port roles from LAN to DMZ (De-
Militarized Zone) for use with publicly accessible servers.
The embedded web configurator is easy to operate.
1.2

ZyWALL Features

The following sections describe ZyWALL features.
1.2.1 Physical Features
Auto-negotiating 10/100 Mbps Ethernet LAN
The LAN interface automatically detects if it's on a 10 or a 100 Mbps Ethernet.
Auto-crossover 10/100 Mbps Ethernet LAN
The LAN interface automatically adjusts to either a crossover or straight-through Ethernet cable.
Auto-negotiating 10/100 Mbps Ethernet DMZ
Public servers (Web, FTP, etc.) attached to a DeMilitarized Zone (DMZ) port are visible to the outside
world (while still being protected from DoS (Denial of Service) attacks such as SYN flooding and
Ping of Death) and can also be accessed from the secure LAN.
Auto-crossover 10/100 Mbps Ethernet DMZ
The DMZ interface automatically adjusts to either a crossover or straight-through Ethernet cable.
LAN/DMZ Interface
The ZyWALL provides four LAN ports that can also function as virtual DMZ ports. You can
configure the ports as LAN or DMZ ports by changing the port role settings in the LAN or DMZ
screen through the Web configurator.
Getting to Know Your ZyWALL
Getting to Know Your ZyWALL
ZyWALL 5 Internet Security Appliance
Chapter 1
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